.form-header {
  display: flex;
  align-items: center;
  padding: 16px 24px;
  background-color: #ffffff;
  border-bottom: 1px solid #e9ecef;
  gap: 16px;
}

.form-header__navigation {
  display: flex;
  gap: 8px;
}

.form-header__nav-btn {
  width: 32px;
  height: 32px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  background-color: #ffffff;
  color: #6b7280;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.form-header__nav-btn:hover {
  background-color: #f3f4f6;
  border-color: #9ca3af;
  color: #374151;
}

.form-header__nav-icon {
  font-size: 16px;
  font-weight: bold;
}

.form-header__breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #6b7280;
}

.form-header__breadcrumb-item {
  color: #374151;
  font-weight: 500;
}

.form-header__breadcrumb-separator {
  color: #9ca3af;
  font-weight: 400;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .form-header {
    padding: 12px 16px;
    gap: 12px;
  }
  
  .form-header__breadcrumb {
    font-size: 13px;
    flex-wrap: wrap;
  }
}
